Medtronic has announced that it will begin enrolment in a pilot study evaluating the safety and efficacy of the Symplicity Spyral renal denervation (RDN) system using a targeted procedural approach with a reduced number of radio frequency (RF) ablations. Set to enrol 50 patients at up to 15 sites in the USA and Europe, the single-arm study is designed to focus on ablating the distal main renal artery and primary branches to lower blood pressure utilising a simplified procedural approach.
“In depth anatomical study indicates the renal nerves are closer to the renal artery in the distal renal artery and branches. Focusing the procedure on these targeted locations may help us understand if we can achieve meaningful blood pressure reductions more efficiently,” said Andrew Sharp, interventional cardiologist at the University Hospital of Wales, in Cardiff, UK, and co-principal investigator of the SPYRAL DYSTAL study. “Early evidence using this modified approach has been encouraging and we intend to build on that data with the DYSTAL study.”
Renal denervation is a minimally invasive procedure intended to regulate overactivity of nerves that lead to and from the kidney, which play an important role in controlling blood pressure.
“As we strive to build upon the rigorous renal denervation studies within the SPYRAL HTN clinical programme, the DYSTAL study will help inform how we can fine-tune the procedure and continue to address the unmet need in hypertension management,” said Dave Moeller, vice president and general manager of the Coronary and Renal Denervation business, which is part of the Cardiac and Vascular Group at Medtronic.
Spyral HTN-OFF MED pivotal trial data at ACC.20
Results from the SPYRAL HTN OFF MED pivotal trial will be presented as a late-breaking clinical trial at the American College of Cardiology 69th Annual Scientific Sessions on 29 March, 2020, in Chicago, USA. The prospective, international, randomised, sham-controlled study is investigating the blood pressure lowering effect and safety of renal denervation with the Symplicity Spyral system in the absence of medication.
“Medtronic is committed to realising the full potential of renal denervation, and we look forward to the highly anticipated results of the SPYRAL HTN-OFF MED Pivotal Trial to be unveiled at ACC in March,” said Moeller.
In addition to the SPYRAL DYSTAL Study, the Medtronic SPYRAL HTN Global Clinical Program includes the SPYRAL HTN-OFF MED Pivotal and SPYRAL HTN-ON MED trials, both prospectively powered, randomised, sham-controlled studies evaluating patients with uncontrolled blood pressure in the absence and presence of prescribed anti-hypertensive medications, respectively. The program also includes the real-world GLOBAL SYMPLICITY REGISTRY that has enrolled over 2,700 patients with the Medtronic Symplicity RDN system, including 600 patients with the Symplicity Spyral catheter.
Approved for commercial use in more than 50 countries around the world, the Symplicity Spyral system is limited to investigational use in the USA, Japan, and Canada.